How To Read A Slot Machine Par Sheet

  
How To Read A Slot Machine Par Sheet 4,9/5 2511 votes
Mooseton

Do you want the PAR sheet for a particular slot machine? That will be almost impossible to get. First, you have to find out which payback program a casino specified for the machine. Most machines have multiple payback programs available for them. Then, if the casino won't give you a copy of the PAR sheet, you have to request a copy from the. PAR Sheets, probabilities, and slot machine play: Implications for problem and non-problem gambling Kevin A. Harrigan and Mike Dixon, University of Waterl oo, Waterloo, Ontario, Canada.

So I wrote a Basic program on my iphone to calculate the return for Quick Hits Platinum Black & White Sevens. I used the odds Mission linked to in an earlier thread. Still haven't found a 100%+ QH game, but I really haven't been looking. Just writing the program was a nice mental exercise. I would really like to see some Par sheets for some other current progressive slots to do the same thing and calculate if the game is a positive play. All the slot websites I've checked (IGT, WMS, Bally, etc.) require you to have some sort of job with a casino to see their Par sheets on their websites so I'm outta luck there. Any suggestions?
$1700, 18, 19, 1920, 40, 60,... :/ Thx 'Do it again'. I'll try
teddys
The Wizard is working with an attorney to get PAR sheets for various slots through the Freedom of Information Act. I hope he doesn't mind me revealing that; maybe he will comment on it.
'Dice, verily, are armed with goads and driving-hooks, deceiving and tormenting, causing grievous woe.' -Rig Veda 10.34.4
Wizard
Administrator

The Wizard is working with an attorney to get PAR sheets for various slots through the Freedom of Information Act. I hope he doesn't mind me revealing that; maybe he will comment on it.


I think you have two of my stories mixed up. To make a long story short, I don't have any PAR sheets I can legally share and lost my legal fight over another similar matter. More on that when I write about it in May.
It's not whether you win or lose; it's whether or not you had a good bet.
pacomartin

The Wizard is working with an attorney to get PAR sheets for various slots through the Freedom of Information Act.


Dr Kevin A. Harrigan and Mike Dixon, University of Waterloo, Waterloo, Ontario, Canada got PARS sheets from the Canadian government for their article entitled.
PAR Sheets, probabilities, and slot machine play: Implications for problem and non-problem gambling
Journal of Gambling Issues: Issue 23, June 2009
There are some PARS sheets for old games that have been posted online (see my blog) but not progressive games.
Wizard
Administrator

There are some PARS sheets for old games that have been posted online. I am not sure what the big deal is about them, as the tricks are not overly difficult to figure out.


I have a whole box of PAR sheets but don't want to get sued for publishing them. It is really no big deal to have some. I already explain how some slots are designed on my Odds site much more clearly than any PAR sheet.
It's not whether you win or lose; it's whether or not you had a good bet.
Mooseton
Thank you paco, I have read that before and it is a good read.
Wiz- I am anxious to hear what happens in may. I am jealous of your sheets. If I had them, I would make a professional slot player app with calculators for the more common progressives. Throw in the mystery progressive target point calculator with some other gambling tips and ouila! You have professional slot playing for dummies.How To Read A Slot Machine Par Sheet
$1700, 18, 19, 1920, 40, 60,... :/ Thx 'Do it again'. I'll try
onenickelmiracle

I think you have two of my stories mixed up. To make a long story short, I don't have any PAR sheets I can legally share and lost my legal fight over another similar matter. More on that when I write about it in May.


Darn, but I look forward to reading it. I was all ready to pay $20 for the legal defense fund.
In the land of the blind, the man with one eye is the care taker. Hold my beer.
AlanMendelson
Is it out of order for me to ask if the FOI case was against government regulators or were you bringing it against the manufacturers?
Wizard
Administrator
Sheet

I am jealous of your sheets. If I had them, I would make a professional slot player app with calculators for the more common progressives. Throw in the mystery progressive target point calculator with some other gambling tips and ouila! You have professional slot playing for dummies.


My PAR sheets are for games from the late nineties and early zeros. As far as I know, none are progressive.
Quote: AlanMendelson

Is it out of order for me to ask if the FOI case was against government regulators or were you bringing it against the manufacturers?


You, sir, are out of order! Sorry, I've always wanted to say that. The case was against the Nevada Gaming Control Board, and I lost. The story is pretty boring; don't get your hopes up. After a lot of legal expense on both sides the judge ruled against me without stating a reason.
It's not whether you win or lose; it's whether or not you had a good bet.
FleaStiff
PAR sheets ? Strips, straps and stops...?
What is relevant disclosure?
You tell a mesmerized drunk: you put your money in here and you press this little red button here, then lights flash and you either win or lose.
Is a casino required to disclose how bright the lights are or how sultry the recorded voice is? The only disclosure issue is the stats of hitting it big or not hitting it at all.
Such disclosure now appears to be made as a percentage basis over a non-defined 'long term'.

Today, the mathematics of slot machines. The University of Houston mathematics department presents this program about the machines that make our civilization run, and the people whose ingenuity created them.

Mathematicians first got interested in randomness by studying games of chance. Ever since, the histories of mathematics and gambling have been intertwined. Clever gamblers use mathematics to look for the smallest advantages, and casinos use sophisticated mathematical tools to devise new ways of drawing in players.

Indeed, a patent granted to the Norwegian mathematician Inge Telnaes in 1984 transformed the gambling industry. Prior to Telnaes’ invention, slot machines were essentially mechanical devices. Besides being difficult to tune and maintain, mechanical slot machines suffered from an essential problem: Let’s look at a machine with three reels, each with 12 symbols, with one of those 12 symbols a cherry. The likelihood of getting three cherries, and winning the jackpot, is 1 in 1,728. If the casino wants to make money, the jackpot payout should be, say $1,700 on a $1 bet. That does not seem attractive by today’s standards. However, the only way to increase the payout is to decrease the chances of hitting a jackpot.

Adding another reel is a possibility. For instance adding a fourth reel in the previous example would get us to a jackpot of about $20,000. But people do not like machines with more reels — they intuitively, and rightfully, feel that extra reels diminish their chance of winning. Another possibility is to put more symbols on each reel. But the astronomical jackpots you see in casinos today would then require truly enormous machines.

Inge Telnaes proposed a simple solution: Let a random number generator — a computer chip — determine the combination of symbols that appear when the reels stop. In other words, use a chip to control where the reels stop on a spin, but create the illusion that the wheels stopped on their own. The number of possible outcomes on the slot machine does not change. However, by reprogramming the chip, the operator has full control over the likelihood of each of the different outcomes. For instance, the operator could make the three cherries appear only once in a million spins.

This was a brilliant insight: Suppose I pick a number between one and a million. Would you be willing to bet that you can guess that number? The answer is probably not. But let a computer chip pick such a number, put the chip in a machine with blinking lights and spinning reels, and many people will be more than willing to make the bet. It is simply because what people assume is happening in a slot machine is very different from what is actually happening.


The Magician oil painting by Hieronymus Boschfrom between 1475 and 1480

The history of gambling is also intertwined with that of a less reputable group — tricksters and swindlers. In the long run, the only sure way to make money by gambling is to create the illusion that your opponent can win, while keeping the odds firmly on your side. And that gives those who know math a very solid advantage.

I'm Krešimir Josić, at the University of Houston, where we're interested in the way inventive minds work.

Slot Machine Percentage Sheet

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How To Read A Slot Machine Par Sheetrock

How to read a slot machine par sheetrock
NOTE: In the example with three cherries, I assumed that one only wins in the case the spin results in three cherries, and there is no other winning combination. In actuality, there are typically many winning combination, and as a result, the jackpot would have to be even smaller.

The following story in Wired Magazine shows the drawbacks of the new generation of slot machines — they are easier to hack and to counterfit than their mechanical counterpart http://www.wired.com/magazine/2011/07/ff_scammingslots/.

Here is a more exhaustive discussion of the history of slot machines, and the random number generators within them http://catlin.casinocitytimes.com/article/non-random-randomness-part-1-1243. You may want to scroll towards the end of the article to read about how flaws in the design of gambling machine resulted in somebody picking 19 out of 20 winning numbers in a game of KENO — and doing so 3 times in a row. That person walked away with $620,000, but only after some controversy.

Both images are from Wikipedia. The slot machine image was taken by Jeff Kubina.

For more mathematics in everyday life, visitkjosic.wordpress.com.

This episode was first aired on September 7th, 2011


How To Read A Slot Machine Par Sheet

How To Read A Slot Machine Par Sheets

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Understanding Slot Machine Par Sheets

The Engines of Our Ingenuity is Copyright © 1988-2011 by John H. Lienhard.